Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6710401 | Semiconductor device including a trench with at least one of an edge of an opening and a bottom surface being round | Katsumi Nakamura, Tadaharu Minato, Katsuomi Shiozawa | 2004-03-23 |